S
M
T
W
T
F
S
30
66°
39°
31
69°
40°
1
70°
39°
2
66°
37°
3
64°
38°
4
63°
38°
5
63°
39°
6
64°
37°
7
64°
35°
8
65°
37°
9
62°
40°
10
64°
41°
11
66°
39°
12
67°
42°
13
68°
42°
14
68°
41°
15
67°
41°
16
69°
40°
17
68°
41°
18
68°
41°
19
67°
40°
20
67°
40°
21
69°
41°
22
68°
41°
23
68°
40°
24
65°
39°
25
57°
35°
26
56°
35°
27
55°
37°
28
57°
36°
29
59°
35°
30
56°
36°
1
55°
37°
2
54°
35°
3
64°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lundy
Lundy's September 2026 forecast shows daily high temperatures ranging from 54° to 70°, with overnight lows between 35° and 42°. The average high for September is 64° with an average low of 39°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Lundy. See also: October | November | December.